The Middle Ear

 The center ear pit is situated in the mastoid interaction of the transient bone. The center ear pit reaches out from the tympanic film to the internal ear. It is roughly two cubic centimeters in volume and is fixed with mucous film. The center ear pit is really an augmentation of the nasopharynx by means of the eustachian tube.  Tympanic Membrane The eustachian tube goes about as a gaseous tension equalizer and ventilates the center ear. Regularly the cylinder is shut yet opens while biting or gulping. When the eustachian tube opens, the gaseous tension between the external and center ear is evened out. The transmission of sound through the eardrum is ideal when the pneumatic stress is balanced between the external and center ear. At the point when the pneumatic stress between the external and center ear is inconsistent, the eardrum is constrained outward or internal making inconvenience and the capacity of the eardrum communicate sound is diminished. The center ear is associated and